https://bitcointalksearch.org/topic/s3-bm1382-overclocking-with-voltage-setting-883197
Discusses firmware issues. Not a long read.
If you use the 12-19 or the 10-24 version make sure you uncheck the keep settings box first, then select the file to be flashed, then proceed, etc
Topic: s3 disaster stop my headache (Read 1056 times)
I have had some of my S3's act weird and hash at around 100Gh or just stop all together.
Here is what I did to fix it.
1. Flash Newest Firmware from 2015
2. Reset to factory default from webGui
3. Reconfigure and Mine
My guess is the older firmware has an option in the config the new firmware does not like, so until all the configs are rebuilt using the default from the newer firmware it will just act weird.
Hope that works for you if you have not done it already.
Here is what I did to fix it.
1. Flash Newest Firmware from 2015
2. Reset to factory default from webGui
3. Reconfigure and Mine
My guess is the older firmware has an option in the config the new firmware does not like, so until all the configs are rebuilt using the default from the newer firmware it will just act weird.
Hope that works for you if you have not done it already.
no i have not. I was getting suspicious pm's saying i should try this but was scared to. which version should i try?
Have you tried any older firmware?
Stop buying miners. Headaches gone. Thank me later.
we are back online 
bump
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bump
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ok well I upgraded firmware that bitmain warrenty sent me.
The upgrade fixed all my "blow boards" but still getting drops in hash and entire units quitting on me until power cycle.
I have been experienced similar problems with the s3's after flashing.
I will just lose boards out of nowhere or the unit itself will stop hashing all together. Please help me this is very frustrating I am getting the same errors we discussed before but less frequently. All my boards seem to be working now otherwise
this has been occcuring since my initial purchase of the s3 unit
The upgrade fixed all my "blow boards" but still getting drops in hash and entire units quitting on me until power cycle.
I have been experienced similar problems with the s3's after flashing.
I will just lose boards out of nowhere or the unit itself will stop hashing all together. Please help me this is very frustrating I am getting the same errors we discussed before but less frequently. All my boards seem to be working now otherwise
this has been occcuring since my initial purchase of the s3 unit
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